Finding the Fourth Proportional to 8,479,564.21, 11,700,736.53 and 5,732,229.29
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Solution
The fourth proportional to 8,479,564.21, 11,700,736.53 and 5,732,229.29 is: 7,909,758.45
Step by Step Solution
- Step 1: Write the proportion equation
8,479,564.21 : 11,700,736.53 = 5,732,229.29 : x - Step 2: Convert to fraction form
8,479,564.21/11,700,736.53 = 5,732,229.29/x - Step 3: Cross multiply
8,479,564.21x = 11,700,736.53 × 5,732,229.29 - Step 4: Simplify right side
8,479,564.21x = 67,071,304,651,838.96 - Step 5: Solve for x
x = 67,071,304,651,838.96/8,479,564.21 - Step 6: Final answer
x = 7,909,758.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.